JP3243719B2 - Self-propelled press-fitting method using self-propelled press-fitting machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a self-propelled assisting device for a press-fitting machine for securing a supporting force when a pile press-in and pull-out machine (hereinafter referred to as "press-fitting machine") self-propelled, and self-propelled by the assisting device. The present invention relates to a press-fitting method, and more particularly to a self-propelled press-fitting method and a self-propelled press-fitting method using the same, which can satisfy both the support and the handling of the press-fitting machine.

[0002]

2. Description of the Related Art In a self-propelled press-fitting machine, a sheet pile in the middle of press-fitting is used to hold the machine body, and the press-fitting machine advances stepwise in sheet piles. In the case where the supporting force of the press-fitted sheet pile is insufficient in the soft ground or the like, conventionally, the auxiliary tool using the rod-shaped member of FIG. 5 has been used. This auxiliary tool has a hook 1 at one end of the rod-shaped member 101.
02 is provided, and the handle 103 is attached to the middle stage. The chuck 112 and the existing sheet pile 104 are connected to each other as shown in FIG.
And the gravity of the press-fitting machine 111 is
Disperse in.

[0003]

However, in order to ensure the strength of the press-fitting machine 111 against gravity, the auxiliary tool has a large diameter bar-shaped member 101 and thus requires a large mass. And the weight reduction has reached its limit. Therefore, the work of attaching and detaching the parts has been greatly burdened at the press-fitting site where the state of the feet is poor.

An object of the present invention is to provide a self-propelled press-fitting machine and a self-propelled press-fitting method using the same that can satisfy both the support and the handling of the press-fitting machine.

[0005]

In order to solve the above-mentioned problems, a wedge-shaped member having a tip portion inserted into a gap between joints of sheet piles fitted to each other is formed. A press-fitting machine self-propelled assist device having a smooth sliding surface is provided.

[0006] If an auxiliary tool is mounted by abutting the sliding surface on the existing sheet pile side and the friction surface on the press sheet pile side, a pile press-in is performed to press the sheet pile into the press-in sheet pile while holding the pile press-in / draw-out machine and moving the fuselage. When the self-propelled press-fitting method of the drawing machine is performed, the wedge-shaped member enters the gap according to sinking of the press-fitting sheet pile. This approaching action increases the contact pressure between the sheet piles, and until the supporting force of the sheet piles balances the gravity of the press-in machine, obtains the frictional force with the existing sheet piles and increases the supporting force of the press-in sheet piles to hold the press-in machine. be able to.

[0007] Providing a hanging handle on the base end side of the wedge-shaped member facilitates the attaching / detaching operation.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of a press-fitting machine self-propelled assistant of the present invention. The press-fitting machine self-propelled assisting tool is composed of a wedge-shaped member 1, one surface of which is a flat sliding surface 1a, the other surface of which is a friction surface formed with claws 2 and the like, and a hook 3 provided on the base end side. The claw 2 is formed in a waveform that opposes the backward movement of the wedge-shaped member 1 while allowing the forward movement and the lateral movement. The tip is formed to a thickness such that the tip enters a gap between joints of sheet piles adjacent to each other.

FIG. 2 is an external view of a main part showing a use state of the press-fitting machine self-propelled assistant, and FIG. 3 is a view taken in the direction of arrow A in FIG. Existing sheet pile 4
In the gap between the joint 4a and the joint 5a of the press-fitted sheet pile 5 in the middle of press-fitting, the sliding face 1a is attached to the existing sheet pile side, and the claw 2 of the friction surface is contacted to the press-fitted sheet pile side, so that the press-fitted sheet pile 5 is settled. Accordingly, the wedge-shaped member 1 enters the gap.

When the wedge-shaped member 1 enters the gap, the contact pressure between the sheet piles increases, and the supporting force of the press-fitted sheet piles 5 increases due to friction with the existing sheet piles 4. This supporting force increases until the press-fitting sheet pile 5 sinks and balances the gravity of the press-fitting machine. The auxiliary tool can be easily removed to the side of the open space. Further, the size is such that it can enter the gap between the joints, and the handle 3 can be easily handled by holding it.

FIG. 4 is an external view showing a procedure in which the press-fitting machine runs by itself with the aid of FIG. Prior to self-propelling, the wedge-shaped member 1 of the auxiliary tool is attached to the joint between the existing sheet pile 4 and the press-fit sheet pile 5 as shown in FIG. Clamp 13 of press-fitting machine 11
When the fuselage 11 is lifted via the chuck 12 after the opening, the press-fitting sheet pile 5 and the wedge-shaped member 1 sink when the supporting force of the press-fitting sheet pile 5 is insufficient, and as shown in FIG. The body is held at a position that balances with the supporting force of No. 4.

The press-fitting machine 11 self-propelledly advances in sheet pile units by the advancement of the clamp 13 and the lowering of the body 11, and after finishing the advancement, the worker removes the wedge-shaped member 1 so that the wedge-shaped member 1 is removed. Pressing-in can be resumed by returning the press-in resistance of the press-in sheet pile 5 to its original state. As described above, the assisting tool can satisfy both the supporting performance and the handleability with a simple configuration.

[0013]

The self-propelling assisting device and the self-propelling method using the assisting device according to the present invention have the following effects. The self-propelled auxiliary device for a press-fitting machine with the above configuration, when the auxiliary tool is attached by abutting the sliding surface on the existing sheet pile side and the friction surface on the side of the press-fitting sheet pile, and moving the machine while holding the pile press-in / pull-out machine on the press-fitting sheet pile. At the time of the self-propelled press-fitting method of the pile press-in and pull-out machine for press-fitting the sheet pile while the sheet pile is being pressed, the wedge-shaped member enters the gap according to the sinking of the press-fitted sheet pile. This approaching action increases the contact pressure between the sheet piles, and until the supporting force of the sheet piles balances the gravity of the press-in machine, obtains the frictional force with the existing sheet piles and increases the supporting force of the press-in sheet piles to hold the press-in machine. be able to. Therefore, in the self-propelled press-fitting method on soft ground, the above-mentioned auxiliary tool can efficiently and self-propelled press the sheet pile by satisfying both the supporting performance and the handling property with a simple configuration.

[Brief description of the drawings]

FIG. 1 is a perspective view of a press-fitting machine self-propelled assist device of the present invention.

FIG. 2 is an external view of a main part showing a use state of the press-fitting machine self-propelled assistant.

FIG. 3 is a view taken in the direction of arrow A in FIG. 2;

FIG. 4 is an external view showing a procedure in which the press-fitting machine is self-propelled by the aid of FIG.

FIG. 5 is a side view of an auxiliary tool using a conventional rod-shaped member.

6 is an external view of a main part showing a use state of the assisting device of FIG. 5;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Wedge-shaped member 1a Sliding surface 2 Claw (friction surface) 3 Hanger 4 Existing sheet pile 4a Joint 5 Press-fitting sheet pile 5a Joint 11 Press-fitting machine 12 Chuck 13 Clamp

Claims (3)

(57) [Claims] 1. A press-fitting machine comprising a wedge-shaped member having a tip portion inserted into a gap between joints of sheet piles fitted to each other, having an uneven friction surface on one surface and a smooth sliding surface on the other surface. Running aid. 2. The self-propelled auxiliary device for a press-fitting machine according to claim 1, wherein a hanger is provided on a base end side of the wedge-shaped member. 3. A sliding surface on the existing sheet pile side and a friction surface on the press-fit sheet pile side in a gap between the joint of the existing sheet pile and the joint of the sheet pile being press-fitted with each other. A self-propelled press-fitting method for a pile press-in / pull-out machine that holds a pile press-in / pull-out machine in the same press-fitting sheet pile and moves and press-fits the machine while holding the auxiliary tool.